Filter
Top Products
ADMINISTRATION OPTIONS AND REQUIREMENTS — GENERIC 2
7-67
Field 9
The field accepts encodes from 0 through 255, which correspond to 1 second
intervals for a maximum elapsed time of 4 minutes and 15 seconds. The default
value for this T203 timer is 30 (30 seconds). This timer functions to monitor the
facility data link and specifies the maximum time allowed without frames being
exchanged on a data link layer connection.
Field 10
Field 11
Field 12
Field 13
The field accepts encodes from 0 through 255, which correspond to 0.1 seconds per
increment for a maximum range of 25.5 seconds. The default value for this T200
timer is 10 (1 second). This timer functions to monitor multiple frame operation on
the data link layer.
This field defines a value for the N200 counter. The value determines the maximum
number of frame retransmissions. Permitted are 1 to 10, with 3 being the default
value.
This field defines a value for the K counter. The value determines the maximum
number of outstanding or unacknowledged information I frames. Permitted values
are 1 to 10, with 7 being the default value.
NOTE: Administration values for these procedure 262 timers and counters
must be coordinated with the other terminating end.
NFAS-PRI Only
Use to specify NFAS arrangements. This information must match exactly and the
encode must come from the premise switch (as described in Technical Publication
41459). Field encodes and their descriptions are:
●
●
Dash (–), the only value for non-NFAS arrangements
Any number within the range of (0 through 31) for NFAS arrangements.
Procedure 262 Word 2: ISDN-PRI D-Channel Backup
This procedure is currently only applicable for certain ISDN-PRI connections. Specifically, those B-
channel groups that use NFAS. Each of these groups is identified by a unique number known as the
D-Channel group number. For NFAS, fields 2 through 5 define the D-channel for a signaling group.
Figure 7-30, Procedure 262 Word 2: ISDN-PRI D-Channel Backup (Generic 2), depicts this
procedure.